Linear module, linear module comprising a magnet, and encoder device for determining the angular position and/or ascertaining the position of a carriage

Abstract

A linear module ( 101 ) comprising a spindle ( 5 ) to be rotated about an axis of rotation (D) of the spindle ( 5 ), a spindle nut ( 51 ) for converting a rotary movement of the spindle ( 5 ) into an axial movement of the spindle nut ( 51 ), a coupling unit ( 6 ) to be moved axially along a guide rail ( 7 ), driven by the spindle nut ( 51 ), the guide rail ( 7 ) for guiding the coupling unit ( 6 ), which runs parallel to the spindle ( 5 ), a preferably brushless motor ( 8 ) having a stator ( 9 ) and a rotor ( 10 ) for driving the spindle ( 5 ), a control device ( 14 ) that is configured to control the motor ( 8 ) and comprises at least one circuit board ( 13 ), a housing ( 21 ) that at least partially encloses a housing interior ( 211 ) and a carriage ( 19 ) that is arranged at least partially outside the housing ( 21 ) and is able to be coupled with a movement of the coupling unit ( 6 ), such that the carriage ( 19 ) is able to be moved parallel to the guide rail ( 7 ) by the movement of the coupling unit ( 6 ), characterized in that the motor ( 8 ), the control device ( 14 ), the spindle ( 5 ), the spindle nut ( 51 ) and the guide rail ( 7 ) are arranged in the housing interior ( 211 ).

1 - 17 . (canceled) 
     
     
         18 . A linear module comprising
 a spindle for rotating about a rotation axis of the spindle,   a spindle nut for converting a rotational movement of the spindle into an axial movement of the spindle nut,   a coupling unit for axial movement along a guide rail, driven via the spindle nut,   the guide rail for guiding the coupling unit, which runs parallel to the spindle,   a motor with a stator, and a stator for driving the spindle, motor with a stator and a rotor for driving the spindle,   a control device which is configured for controlling the motor and comprises at least one circuit board,   a housing which at least partially encloses a housing interior, and   a carriage which is arranged at least partially outside the housing and is coupled to a movement of the coupling unit, so that the carriage is moveable parallel to the guide rail by the movement of the coupling unit,   wherein the motor, the control device, the spindle, spindle nut and the guide rail are arranged in the housing interior.   
     
     
         19 . The linear module according to  claim 18 , wherein the linear module comprises a cover and the housing has an opening which is at least partially covered with the cover and
 the carriage is arranged at least partially outside the housing, adjacent to a top side of the cover, and is connected to the coupling unit, which is arranged adjacent to a bottom side of the cover.   
     
     
         20 . The linear module according to  claim 18 , wherein the motor is arranged coaxially to the spindle, so that the rotor and the spindle have the same rotation axis. 
     
     
         21 . The linear module according to  claim 18 , wherein the coupling unit comprises a ball or roller recirculation, which has a plurality of rollers or balls that allow the coupling unit to run with low friction relative to the guide rail. 
     
     
         22 . The linear module according to  claim 18 , wherein the linear module comprises a holding brake and a holding state of the holding brake can be reversibly converted into a release state of the holding brake,
 wherein the holding state prevents a rotational movement of the spindle and   the release state enables rotational movement of the spindle.   
     
     
         23 . The linear module according to  claim 22 , wherein the holding brake is an electrical holding brake and has a mechanical transmission element, wherein the electrical holding brake is designed such that the holding state can be achieved in a de-energized state of the holding brake. 
     
     
         23 . The linear module according to  claim 22 , wherein the holding brake is arranged at one end of the spindle and the end of the spindle has at least one of at least one radial projection and at least one radial recess, wherein at least one of the at least one projection and the at least one recess is at least partially form-fittingly coupled to a hub of the holding brake in the holding state. 
     
     
         25 . The linear module according to  claim 18 , wherein the control device is configured to control at least two of the following parameters:
 a power supply for controlling the motor for commutation of the motor,   a position value defined by the relative distance of the carriage to one end of the spindle,   a speed of the movement of the coupling unit,   acceleration of the movement of the coupling unit,   a force of the movement of the coupling unit,   direction of movement of the coupling unit.   
     
     
         26 . The linear module according to  claim 18 , wherein the circuit board comprises small and large electronic components with respect to the overall height perpendicular to the circuit board plane, wherein at least one of transistors and converters, are arranged at the edge of the circuit board of a longer side of the circuit board. 
     
     
         27 . The linear module according to  claim 18 , wherein the control device comprises a connection for power supply and a connection for communication with the control device. 
     
     
         28 . The linear module according to  claim 18 , wherein the linear module comprises an interaction element, wherein the interaction element comprises at least one of adjustment elements and status indicators, wherein the adjustment elements are used for at least one of speed adjustment and force adjustment directly on the linear module. 
     
     
         29 . The linear module according to  claim 18 , wherein at least one connection element is present, wherein at least one connection element is arranged on the carriage and at least one further connection element is formed at one end or at both ends of the housing. 
     
     
         30 . The linear module according to  claim 18 , wherein a minimum cross-sectional dimension of the linear module orthogonal to the spindle axis is never wider than 150% of an outer diameter of the motor, apart from the connections protruding from the housing, the interaction elements, housing screws and the carriage. 
     
     
         31 . The linear module according to  claim 18 , wherein the housing comprises two housing covers on the end face, wherein one of the end-side housing covers is at the same time a motor housing of the motor. 
     
     
         32 . A linear module, comprising
 a brushless motor with stator and rotor, a spindle, a spindle nut for converting a rotational movement of the spindle into an axial movement of a coupling unit, the coupling unit for moving axially along a guide rail driven by the rotation of the spindle,   a guide rail for guiding the coupling unit, which extends parallel to the spindle, and   a carriage, which is coupled to the coupling unit, so that the carriage is moveable parallel to the spindle by a movement of the coupling unit, and   at least one magnet on or in an end face of the rotor and/or the spindle as well as an electronic encoder device substantially arranged axially to a rotation axis of the spindle for reading out the angular position of the magnet and/or determining the axial position of the carriage.   
     
     
         33 . The linear module according to  claim 32 , wherein the magnet has the north pole on one side radially remote from the rotation axis. 
     
     
         34 . The linear module according to  claim 32 , wherein the magnet with encoder device serves to determine at least one of the rotational speed of the rotor, the rotational speed of the spindle, and a commutation of the brushless motor by means of the signal of at least one of the electronic encoder device and/or a control device. 
     
     
         35 . The linear module according to  claim 19 , wherein the carriage is arranged completely outside the housing. 
     
     
         36 . The linear module according to  claim 19 , wherein the cover is a flexible cover. 
     
     
         37 . The linear module according to  claim 20 , wherein the rotor is rigidly connected to the spindle. 
     
     
         38 . The module according to  claim 31 , wherein the other of the end-side housing covers is one of a support for the spindle and a holding brake housing of the holding brake.